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Finding the Fourth Proportional to 64,706.31, 96,935.07 and 39,673.35

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Solution

The fourth proportional to 64,706.31, 96,935.07 and 39,673.35 is: 59,433.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,706.31 : 96,935.07 = 39,673.35 : x
  2. Step 2: Convert to fraction form
    64,706.31/96,935.07 = 39,673.35/x
  3. Step 3: Cross multiply
    64,706.31x = 96,935.07 × 39,673.35
  4. Step 4: Simplify right side
    64,706.31x = 3,845,738,959.38
  5. Step 5: Solve for x
    x = 3,845,738,959.38/64,706.31
  6. Step 6: Final answer
    x = 59,433.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.